Cita APA (7a ed.)

Lilley, R. C. (2013). Dealing with difficult people (2nd ed.). Kogan Page Ltd.

Cita Chicago Style (17a ed.)

Lilley, Roy C. Dealing with Difficult People. 2nd ed. Philadelphia, Pa.: Kogan Page Ltd, 2013.

Cita MLA (9a ed.)

Lilley, Roy C. Dealing with Difficult People. 2nd ed. Kogan Page Ltd, 2013.